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Trunk Problems

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I have read threads about people not able to open their trunks, but this is something different.

If I pop my trunk (doesn't matter if it's with the fob, dash button or trunk button) the trunk pops properly, then I open the trunk, do whatever task I needed to do, then I go to close the trunk.

Here is where the problem arises. Just before the trunk closes the latch makes its open noise again and the trunk won't latch, I lift it up an inch or so it resets, then I go to close it and opens again. Sometimes this happens twice other times over 30. Right now my trunk is open in the parking lot because I was so sick of it.

Once I do finally get it closed and latched it stays that way and never randomly opens or pops.

What might be wrong? My thoughts were a faulty latch, but I'm not sure whats triggering it or one or more of the wires in the trunk harness thing have rubbed through.

I have sort of eliminated one of the switches being bad since it seems to do it regardless of the switch I use to pop the trunk, and I would think that if a switch was making contact, the trunk would randomly pop.

Any thoughts are appreciated. Such a little thing brings great irritation.

Thanks.

Bob
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Discussion Starter · #3 ·
Well, I'll have to pull apart that whip and see whats in there.

I hate electrical gremlins.

Thanks.

Bob
 

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Discussion Starter · #6 ·
I took the loom apart whare it goes from the trunklid to the chassis and there were several frayed and shorting wires.

I would guess your problem is there too.
 

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Discussion Starter · #8 · (Edited)
I used split heat shrink tubes and 1 at a time covered them up, then I wrapped the whole bundle in tape.

One was particularily bad so I curt the section out and soldered in a new piece.

Bob


PS, I didn't realize how old this thread was, i forget I've had my M5 this long (got it oct 07). It is by far the best and most favorite car I've ever owned. Makes me smile everytime see it hibernating in the shop area.

----Edit ---

Hahah, I was typing that PS before or rather during you editing your responce. How funny.
 

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Discussion Starter · #10 ·
No! Do not cut open the rubber thing. I had to go look how I did it. Just grab the rubber where it meets the lid and pull, kind of wiggle back and forth and it will pullfree of the trunk. Then take and slide/fold down on itself (like a tubesock, or uhm, the other rubber thing guys use...) to expose the wires. The frays should be nearer to the lid.

Bob
 

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Discussion Starter · #12 ·
No, I just split regular heat shrink tubing so I didn't have to cut the wires, pinched it closed and when I heat it up with the heat gun, it melts back together.
 

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Discussion Starter · #14 ·
I just kind of worked it down, it's a pain. As soon as I could I grabbed the bunch of wires with my fingers to stop them from pulling and rubbing. You can pull the other end off too, if it will help at all.

All my frays were right at the trunk lid.

Otherwise the next step would be to take off the trunk panel and take lossen the whole harness. I didn't have to go to that step.

Bob
 
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